Colossal heads (which can be up to 3 m (10 ft) tall); 1  Rectangular altars (more likely thrones) such as Altar 5 shown below; 2  Free-standing in-the-round sculpture, such as the twins from El Azuzul or San Martin Pajapan Monument 1; and. 3  Stelae, such as La Venta Monument 19 above.
Benchtop sanders are one-of-a-kind sanding machines that are built to last and offer more power, and control for larger sanding projects. They are commonly used by both do-it-yourselfers and professionals and are commonly found in home workshops. Benchtop sanders are less portable than handheld sanders but they offer more power and more versatility. The most versatile sanders offer a belt and a disc built into a single sander. Higher grade sanders are a good investment if you want to work with larger pieces of material or need to complete a lot of sanding work.
At the other end of the spectrum, users seeking an abrasive finer than 120 grit to remove, for instance, a coating without damaging the underlying metal surface, probably require a duplex flap disc. That type of disc contains nonwoven, surface-conditioning material blended with traditional coated material.